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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let input=`D
        ABACA123D`
        let [no,str_list]=input.split('\n').map(v=>v.trim())
        let obj={}
        for(let i=0;i<=9;i++){           
            obj[i]=0
        }
        for(let i=0;i<26;i++){
            obj[String.fromCharCode('a'.charCodeAt()+i)]=0
            obj[String.fromCharCode('A'.charCodeAt()+i)]=0
        }
        let [l,r]=[0,0]
        let res=0
        let test=[]
        while(r<str_list.length){
            


            r++
        }


        console.log([no,str_list]);
        
        

    </script>
</body>
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